TY - RPRT TI - First-pass effect: nonlinear concept comprising an explicit solution of integrated Michaelis-Menten equation. AU - F Keller AU - J Scholle PY - 1981 DO - 10.1002/jps.2600700221 UR - https://pubmed.ncbi.nlm.nih.gov/7205226/ ID - 7205226 ER -